「Updated to latest events: ’Letter in Orange」 https://monster-siren.hypergryph.com Monster Siren Records (MSR), one of the world's largest music publishers in the eleventh century in Terra. From heavy metal bands to the traditional country music to the symphonies, MSR artists are involved in all aspects of music. According to the latest statistics, MSR occupies more than 30% of the music market in Terra.
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